[电] keyed agc, keyed automatic gain control
diàn jiàn zì dòng zēng yì kòng zhì ㄉㄧㄢˋ ㄐㄧㄢˋ ㄗˋ ㄉㄨㄥˋ ㄗㄥ ㄧˋ ㄎㄨㄥˋ ㄓˋ